Toilet ventilating apparatus in kit form

ABSTRACT

An apparatus for ventilating the toilet bowl of noxious odors which includes a conduit formed within the toilet seat interconnecting the toilet bowl chamber and an opening in the toilet seat axle. The noxious odors are to be sucked through the opening in the toilet seat and into and interiorly of the toilet seat axle whereupon the odors are moved by a blower into a separate chamber formed interiorly of the lavatory conduit. The odors are then transmitted through the lavatory conduit and into the sewage plumbing system.

United States Patent Ivancevic Nov. 4, 1975 TOILET VENTILATING APPARATUS IN 2,639,440 5/1953 Ma auskas 4/240 x KIT FORM 2,672,623 3/1954 Sperzal 4/240 2,726,405 12/1955 Smith et al 4/213 Inventor: Marko Ivancevic, 423 Broadway, 3,020,564 2/1962 Chodacki et a1... 4/213 Redondo Beach, Calif. 90277 3,108,289 10/1963 Smith 4/213 Filed: p 1974 3,649,972 3/1972 Sowards 4/211 [21] Appl. No.: 462,400 Primary ExaminerHenry K. Artis [52] US. Cl. 4/213; 4/72; 4/217; [57] ABSTRACT 4/236 4/241 4 An apparatus for ventilating the toilet bowl of noxious 3 odors which includes a conduit formed within the toie 0 am 4/240 let seat interconnecting the toilet bowl chamber and an opening in the toilet seat axle. The noxious odors are to be sucked through the opening in the toilet seat [56] References Cited and into and interiorly of the toilet seat axle where- UNITED STATES PATENTS upon the odors are moved by a blower into a separate 2,079,733 5/1937 Cumming 4/213 chamber formed interiorly of the lavatory conduit. 2,119,529 6/1938 Dick 4/217 The odors are then transmitted through the lavatory 2,122,687 7/1938 Herrmann t 4/213 conduit and into the ewage system 2,286,555 6/1942 Long 4/213 2,320,065 5/ 1943 Briscoe et al. 4/213 8 Claims, 10 Drawing Figures US. Patent Nov. 4, 1975 Sheet 1 of 2 U.S. Patent Nov. 4, 1975 Sheet 2 of2 3,916,459

TOILET VENTILATING APPARATUS IN KIT FORM BACKGROUND OF THE INVENTION The field of this invention relates to a ventilation apparatus for a conventional, human sit down type of toilet facility.

The conventional toilet bowl construction has no provision for the elimination of any noxious odors with the exception of permitting such to be expelled into the atmosphere. The expelling of such into a confined area, such as in the conventional small bathroom area, it is an unpleasant situation. Prior to the subject matter of this invention, there has been no known structure which specifically provided for the elimination of odors from within a toilet bowl in the form of a kit.

SUMMARY OF THE INVENTION The apparatus of this invention employs a flat shaped conduit in the back end of the toilet seat. This conduit opens up into the toilet bowl chamber when the seat is placed in its lower most position against the toilet and against the upper surface of the toilet bowl. The seat is pivotable with respect to the toilet bowl by means of a pivot axle. This pivot axle includes an opening formed therein which connects with the opening in the toilet seat. The pivot axle is hollow and connects with a conduit. This conduit in turn connects with a blower. The blower is to remove by suction any noxious odors within the toilet bowl through the conduit in the seat, through the opening in the axle, through the axle and into the conduit and through the outlet of the blower. The outlet of the blower is connected to the lavatory discharge plumbing elbow. This lavatory plumbing elbow has been divided into an upper section and a lower section. The lower section of the plumbing elbow provides for discharge of the water from the lavatory. The upper portion of the lavatory elbow provides for discharge of the noxious odors so that such are not permitted to be expelled out into the lavatory bowl. The lavatory elbow then discharges into the sewage plumbing system to which it is connected. At this point, both the odorfrous gas and the liquid are discharged together. An electrical switch means is employed in combination with the toilet seat and upon the seat being pressed downwardly by the weight of the person, the switch means is activated resulting in operation of the blower.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an isometric view of a toilet and an adjoining lavatory with the apparatus of this invention mounted therebetween;

FIG. la is an enlarged partial exploded view showing in greater detail the interconnection between the toilet seat and the toilet bowl;

FIG. 2 is an exploded isometric view of the apparatus of this invention showing the structural arrangement of parts at the interconnection of the toilet seat to the toilet bowl and functional characteristics of components;

FIG. 3 is a cross-sectional view through a suction portion of the apparatus of this invention taken along line 3-3 of FIG. 1;

FIG. 4 is a cross-sectional view similar to FIG. 3, but showing the toilet seat in its normal at rest position with cover down;

FIG. 5 is a top and side view of the axle bearing taken along line 5-5 of FIG. 2;

FIG. 6 is a cross-sectional view through the connection of the toilet seat to the axle with the toilet seat in the upper vertical position, showing the way of drainage of accidentally poured water;

FIG. 7 is a partially exploded, cross-sectional view, showing the details of the blower of this invention and the interconnection of such to the lavatory plumbing elbow;

FIG. 8 is a partly cross-sectional side and front view of the lavatory plumbing elbow; and

FIG. 9 is a diagram showing the interconnection of the electrical components.

DETAILED DESCRIPTION OF THE SHOWN EMBODIMENT One of the objectives of this invention is to provide a simple, efficient and durable toilet bowl ventilating apparatus. The apparatus is designed into the form of a kit which can be easily installed on conventional toilet bowl structures requiring no professional skill or special tools for installation. The apparatus of this invention is fully automatic and is operated only when a person is located upon the toilet seat with cover up. The apparatus of this invention is designed to be employed in conjunction with the lavatory plumbing, since most water closets are equipped with a lavatory as well as a toilet bowl. The apparatus of this invention eliminates costly installation of vents or blowers in walls or flooring. A further advantage of the apparatus of this invention is when the toilet seat cover is in the lower position down against the toilet seat, the apparatus cannot be operated and the toilet bowl can function as a conventional chair. A further advantage of the apparatus of this invention is that it is protected from accidental water penetration even when the seat is in the upper vertical position with its intake duct exposed. The apparatus of this invention is designed to be easily dismantled and relocated, if necessary.

Referring particularly to the drawings, there is shown in FIG. 1 a toilet which is composed generally of a tank 1, a toilet bowl 4a having a toilet bowl rim 4, a seat 6 and a cover 5. Also shown in FIG. I is a lavatory 17. The lavatory is normally mounted upon the wall within a water closet or other similar structure with the toilet bowl 4a being mounted upon the floor. A water trap 17a connects with lavatory l7 and functions to discharge the water from the lavatory bowl. The apparatus of this invention is designed to take advantage of the proximity of a lavatory to the toilet in most installations, facilitating the construction of this invention in kit form.

Formed in the rear portion of the seat 6 is a seat duct (FIG. 2). The seat duct 6c includes a forward opening 6a and an aft opening 6b. The opening 6a is basically long and narrow wherein opening 6b is of a shorter length, but of a greater height. However, both openings are of approximately the same area.

Located at the back end of the seat 6 is a seat bearing 6f through which the duct 6c communicates with the interior of the axle hole 10a.

Slidingly mounted within the opening in the bearing 6fis an axle 10. The axle 10 includes an opening 10a which is of the same size as opening 6b and is to connect therewith when the seat 6 is in the down position against the rim 4. The edges of the axle 10 are to extend within a pair of spaced apart cover bearings 5a which are attached to the cover 5. Each bearing'5a includes a bump 5b. The function of the bumps 5b will be explained further on in the specification.

Also, each end of the axle cooperates within an opening formed in anchor bearings 7 and9. Anchor bearing 7 includes a small opening therein adapted to receive a pin 12. Pin 12 cooperates within an opening formed in an anchor 11. The anchor 11 is connected to an anchor bolt 11a. The free end of the anchor bolt 11a is connectable to a nut 11b. By inserting the pin 12 through the opening in the anchor 11 and into the opening in the anchor bearing 7, and then placing the anchor bolt 11a through an appropriate opening in the toilet bowl 4a and locking such by means of nut 11b, the axle 10 is thereupon fixed to the toilet bowl 4a. A tight fit is to be established between the axle 10 and the anchor bearing 7.

In a similar manner, the anchor bearing 9 at the opposite end of the axle 10 is to be attachable to the toilet bowl 4a by means of a pin 12, an anchor bolt 11a and a nut 1 lb. The use of anchors and anchor bolts and nuts are used in conventional toilet manufacture.

The aft ends of each anchor bearing 7 and 9 includes a slightly, upward bevel 7b and 9b, respectively. The anchor bearings 7 and 9 are permitted a slight amount of pivotal movement within the uppermost position governed by the bevels 7b and 9b about the surface of the rim 4c. In this position, the seat 6 is canted slightly with respect to the rim 4 determined by the angle of inclination of bevels 7b and 9b. This can be best seen in FIG. 4.

Mounted within the under surface of the anchor being 7 is a push button 7a which is spring loaded. In a similar manner, a push button switch 90 is mounted within the anchor bearing 9 and is also spring loaded. When no person is sitting on the seat 6, the biasing action of the springs 7c and 9d is sufficient to locate the seat 6 in the raised position shown in FIG. 4. When the cover 5 is placed upon the seat 6, the bumpers 5b come into contact against the bowl rim 4 preventing depression of switch 9c. As it will be explained further on in the specification with the cover in the downward position, or if the cover 5 is up and no one is sitting on the seat 6, the rear part of the seat will be raised by the spring action of the push buttons with respect to the toilet bowl rim 4 and there will be no activation of the device. Also, to prevent activation when both seat and cover are up, the rear side of the seat bearing is provided with a bump 6d.

The anchor bearing 9 includes an extension 9a. The top view in FIG. 5 clearly shows the relationship between the extension 9a and the placement of the axle 10. Also, it is to be noted that the aft end of each of the anchor bearings 7 and 9 are bifuracted to form a pair of spaced apart legs. It is between these legs that the anchors are situated and cooperates with their respective pins 12.

A cap 13 with duct receptacle 13a is connected to either side of the axle 10, depending on which side the lavatory is located. Cap 8 closes the other end of the axle l0.

When the seat 6 is in the upper, vertical position as shown in FIG/6, any water which enters duct 6c is drained through the channels 100. Carved in the outside wall of the axle 10, these channels cooperate with the inside surface of the seat bearing 6f. (FIG. 2 and FIG. 6). Thus, forming ducting for water which is expelled through the holes in the rear side of the seat bearing 6h (FIG. 6 and FIG. 2). This is due to the fact that axle 10 is fixed to the bearing 9 and thus does not move while seat bearing 6f rotates and opening 6b locates itself out of alignment with opening 10a, adopting alignment with upper side of channel 10c.

The electric push button switch 9c is normally open and closes when compressed. The switch 9c is connected to wires 14. These wires extend through the conduit 19. The conduit 19 is threadably attached into the receptacle 13a. Conduit 19 is to be appropriately bent and mounted by brackets 19a (FIG. 1) to the wall to which the lavatory 17 has been mounted. The wires 14 extend within the blower housing 15. The blower housing 15 is attached to the lavatory elbow 16. The lavatory elbow 16 is specifically designed and replaces the conventional elbow of the lavatory. The interior of the lavatory elbow 16 includes a partition 16a which in essence divides the lavatory elbow into a lower water duct and a upper gaseous duct. The water trap 17a discharges into the lower water duct. A nipple 16b is provided for access into the upper gaseous duct and for fixing the blower to it.

Attached exteriorly to the elbow 16 (FIG. 8) are a pair of brackets located on opposite sides of the elbow 16. Attached to the blower housing 15 is an attaching bracket 15f. To mount the blower housing 15 upon the elbow 16, the blower outlet 15d is inserted into the elbow nipple 16b. The holes in elbow and blower brackets are aligned and tightened securely by means of bolt 16d. The blower housing 15 can be attached by either one of the brackets 160, depending upon which side of the elbow 16 it is desirable to mount the blower housing 15.

Nipple 15d (FIG. 7) is integrally formed as a right angle extension of conduit 15m. Located within con-. duit 15m is a valve formed of an inner conduit 15p and a cap l5e. The cap l5e is to facilitate rotation of the inner conduit 15p from the open position shown in FIG. 7 and the closed position. The cap 152 is provided with appropriate indicia denoting whether the valve is in the open or closed position. The cap and conduit 15p are to be longitudinally fixed upon the conduit 15m by means of conventional fastening means, such as a bayonet slot arrangement. A hole 15g is formed within the inner conduit 15p and when the valve is in the open position is to match identically the size of the opening within nipple 15d. This valve is to be employed in case of pressure cleaning of the lavatory to prevent water from being forced into the blower housing 15. Therefore, during normal use, the valve will be in the open position.

The free end of flexible ducting 19 is threadably connected with threads 15k of a nipple 15c (FIG. 7). Nipple 15c is formed as a integral part of the blower housing 15. The electrical wires 14 are conducted through the nipple 15c and into the blower chamber 15a of the blower housing 15. Mounted within the chamber 15a is an air blower 15b which is rotatably driven by means of a motor 18. In case of clogging of the water discharge by which would cause water to enter into the gaseous chamber and up into the blower chamber 15a, penetration of such into the motor chamber 15j is prevented by means of wall 15n and conventional sealer bearing l5i which surrounds the blower shaft 15r and is mounted within the partition 15n. Air holes 15!: are

provided within the motor housing in order to cool the motor 18 during use.

The motor 18 is driven by being connected to a conventional source of electricity. The source will normally comprise conventional house current outlet such as a socket 140 (FIG. 1) or any other available outlet.

The operation of the apparatus of this invention is as follows: when a person sits upon seat 6, the buttons 7a and 9c are depressed. Upon the depressing of 9c, the switch is closed thereby completing the electric circuit to the blower motor 18. The blower 15b is then rotated causing a suction. Any noxious gases produced within the toilet bowl 4a are sucked through the opening 6a and into the duct 60, through the conduit 19 into the blower chamber 15a, out through conduit 15m and nipple 15d, throgh nipple 16b and into the air chamber of the elbow 16. The gases are then conducted to the sewage plumbing system in order to be transmitted along with the sewage water to an appropriate sewage disposal system.

What is claimed is:

1. In combination with a toilet and a lavatory, said toilet having a toilet bowl and a toilet seat, said toilet seat being pivotally connected by pivot means to said toilet bowl, said lavatory having a liquid drain pipe, a toilet ventilating apparatus comprising:

air duct means connected to said toilet seat;

air conduit means connected to said air duct means;

air blower means having an air inlet and a air outlet,

said air inlet connected to said air duct means, said air outlet connected to said lavatory liquid drain pipe, whereby said air blower means is to draw air by suction from within said toilet bowl through air duct means and through said air conduit means and into said lavatory liquid drain pipe;

means connected to said toilet seat for causing said toilet seat to assume a canted position with respect to the rim of the said toilet bowl when said seat is in the at rest position;

said means includes an axle, said seat being pivotally mounted upon said axle, said axle being fixed to connected anchor means, said anchor means including an anchor bearing, said anchor bearing being movable between an and upper position and a lower position, said anchor bearing being under a constant bias to said upper position, whereby when said anchor bearing is in said upper position said toilet seat is canted at an angle with respect to the rim of said toilet bowl.

2. The combination as defined in claim 1 wherein:

said axle being hollow, an aperture extending through said axle into the hollow chamber formed therein, said aperture to connect with said duct means when said seat is located against the rim of said toilet bowl.

3. The combination as defined in claim 1 wherein:

an electrical switch means connected with said anchor bearing, with said anchor bearing in said lower position said switch means being closed, with said anchor bearing in said upper position said switch means being open, said air blower connected to said switch means, with said toilet seat in said lower position said air blower capable of being activated.

4. The combination as defined in claim 3 including:

a toilet seat cover pivotally attached by a bearing assembly to said axle, said toilet seat cover capable of assuming an upper substantially vertical position and a lower position in contact with said toilet seat, said bearing assembly including enlarged cam means, with said cover in the lower position against said toilet seat said cam means causes said anchor bearing to be located in said upper position.

5. The combination as defined in claim 1 wherein:

said duct means being formed within said toilet seat and located at the back end of said toilet seat adjacent said pivot means.

6. The combination as defined in claim 5 wherein:

said air duct means including an inner opening and an outer opening, said outer opening connecting with the interior portion of said toilet bowl, said inner opening connecting with said air conduit means, the area of said inner opening and said outer opening being approximately equal.

7. The apparatus as defined in claim 6 wherein:

with said toilet seat being manually moved to an upper substantially vertical position therebeing water conducting channels formed between said duct means and said axle, whereby if any liquid is caused to enter said duct means when said seat is in the upper vertical position said water is not conducted into said air conduit means and is passed through said gap and within said toilet bowl.

8. The combination as defined in claim 1 wherein:

said lavatory liquid drain elbow including an inner partition, said inner partition dividing said liquid drain pipe into a gaseous chamber and a water chamber, the water from said lavatory being expelled through said water chamber, the gases expelled by said air blower means being conducted into said gaseous chamber. 

1. In combination with a toilet and a lavatory, said toilet having a toilet bowl and a toilet seat, said toilet seat being pivotally connected by pivot means to said toilet bowl, said lavatory having a liquid drain pipe, a toilet ventilating apparatus comprising: air duct means connected to said toilet seat; air conduit means connected to said air duct means; air blower means having an air inlet and a air outlet, said air inlet connected to said air duct means, said air outlet connected to said lavatory liquid drain pipe, whereby said air blower means is to draw air by suction from within said toilet bowl through air duct means and through said air conduit means and into said lavatory liquid drain pipe; means connected to said toilet seat for causing said toilet seat to assume a canted position with respect to the rim of the said toilet bowl when said seat is in the at rest position; said means includes an axle, said seat being pivotally mounted upon said axle, said axle being fixed to connected anchor means, said anchor means including an anchor bearing, said anchor bearing being movable between an and upper position and a lower position, said anchor bearing being under a constant bias to said upper position, whereby when said anchor bearing is in said upper position said toilet seat is canted at an angle with respect to the rim of said toilet bowl.
 2. The combination as defined in claim 1 wherein: said axle being hollow, an aperture extending through said axle into the hollow chamber formed therein, said aperture to connect with said duct means when said seat is located against the rim of said toilet bowl.
 3. The combination as defined in claim 1 wherein: an electrical switch means connected with said anchor bearing, with said anchor bearing in said lower position said switch means being closed, with said anchor bearing in said upper position said switch means being open, said air blower connected to said switch means, with said toilet seat in said lower position said air blower capable of being activated.
 4. The combination as defined in claim 3 including: a toilet seat cover pivotally attached by a bearing assembly to said axle, said toilet seat cover capable of assuming an upper substantially vertical position and a lower position in contact with said toilet seat, said bearing assembly including enlarged cam means, with said cover in the lower position against said toilet seat said cam means causes said anchor bearing to be located in said upper position.
 5. The combination as defined in claim 1 wherein: said duct means being formed within said toilet seat and located at the back end of said toilet seat adjacent said pivot means.
 6. The combination as defined in claim 5 wherein: said air duct means including an inner opening and an outer opening, said outer opening connecting with the interior portion of said toilet bowl, said inner opening connecting with said air conduit means, the area of said inner opening and said outer opening being approximately equal.
 7. The apparatus as defined in claim 6 wherein: with said toilet seat being manually moved to an upper substantially vertical position therebeing water conducting channels formed between said duct means and said axle, whereby if any liquid is caused to enter said duct means when said seat is in the upper vertical position said water is not conducted into said air conduit means and is passed through said gap and within said toilet bowl.
 8. The combination as defined in claim 1 wherein: said lavatory liquid drain elbow including an inner partiTion, said inner partition dividing said liquid drain pipe into a gaseous chamber and a water chamber, the water from said lavatory being expelled through said water chamber, the gases expelled by said air blower means being conducted into said gaseous chamber. 